Control for reversing mechanism



April 7, 1931. A. c. YKALK 1,799,560

CONTROL FOR REVERSING MECHANISM Original Filed Aug. 2:5, 19 2 Sheets-Sheet 1 H556??? C JL QZB,

April 7, 1931- A. c. KALK 1,799,560

CONTROL F OR REVERSING MECHANISM Original Filed Aug. 25:, 1926 2 Sheets-Sheet 2 d, if

' 1 27 H W" 9 25 T 1 "1 llln Patented Apr. 7, 1931 v UNITED STAT S PATIENT OFFICE ALBnRrc. KALK, or CHICAGO, ILLINOIS, ASSIGNOB TO INVVINQCIIBLE LAUNDRY EQUIP- MENT cor/many: A conroaarron or rumors r a CONTROL FOR REVERSING- MECHANISM Original application filed August 23, 1926', Serial No.

This invention relates to a drying'machine' involving a reversing drive and a manual drive and concerns itself with interlocking mechanism between the reversing drive and manual drive whereby the reversing drive is locked against operation during the operation of the manual drive and vice versa. This application is a division of my copending application Serial No. 131,020, filed August 23,1926.

The invention comprises the novel structure and combination of parts hereinafter described and more particularly pointed out I and defined in the appended claims.

lustratea preferred form of this invention and in which similar reference numerals refer to similar features in the difierent views:

Figure 1 is an end elevational view of a drying machine involving this invention;

Figure 2 is an enlarged fragmentary elevational view looking from the right handside of Figure 1; r

Figure 3 is an enlarged sectional view taken upon the line IIIIII of Figure 1;

' Figure 4 is an enlarged sectional view taken upon the line IV-IV of Figure 3 look- 8 ing in the direction of the arrows, and

Figure 5 is a sectional view upon the line I V-V of Figure 3 looking in the direction of the arrows.

In the drawings, there is shown a'cylindrical drying machine comprising a cylinder 1, agear 2 secured coaxially with the cylinder and a pinion 3 for rotating said gear and. cylinder. The pinion 3 is secured upon a shaft 4 which is adapted to be driven by suitable reversing mechanism as'shown in my copending application.

It might be mentioned that the reversing mechanism'comprises a shaft 5 (Figure 2) having a slotted slide plate 6 straddling the same. This slide plate has two pairs of studs 7, one pair upon each side of'the slot. A wrist pin 8 is located between these studs. The wrist pin 8 is carried by a crank 9 which extends thru said slot and is secured to a shaft 10. Upon the shaft 5 there is secured a triangular shaped neutral plate 11 and the slide plate 6 is provided with spaced plates p -'131,020. Divided and 4, 1928. Serial No. 297,419.

In the accompanying drawings which il-- 12, the lower ends of which form' shoulders for coacti'on with studs 13secured tojth'e lower corners of the neutral plate 11. Obvi ously as the slide plate 6 is pulled downwardly by the rotation of the shaft 10 one of the shoulder plates 12 will engage theuppermost pin 13 on the neutral plate 11 and rotate the neutral plate and shaft 5 until the pins 13 are in the same horizontalplane and are engaged by both plates 12. .Oonsequently the downward operation of the slide plate will always bring the shaft 5 to a predetermined position which may be defined as the neutral position in which the cylinder is not rotated. This shaft 5 operates the reversing mechanism and the slide plate 6 controls the o'pera tive' relation between the shaft 5 and revers- 7 ing mechanism as shown in my copending case. r

The shaft 10 is provided with a bevelled pinion 14 that meshes with abevelled pinion this application filed August 15 secured upon a sloping shaft 16 which is journalled in a bearing 17 (Figure 3) upon a shiftable shaft 18. The shaft 16 extends thru said bearing and has aflixed thereon, an operating crank 19. The shaft18 is slidabl-y j ournalled in, a suitable bearing having spaced walls 20,21 and 22. A pinion 23 iss'ecured upon the shaft 18 between the wal1s'20 and 21; the aforementioned bearing 17'being locatedbetween the walls 21 and 22; The pinion 23 is adapted to mesh with the cylinder gear 2 upon proper shifting of the. shaft18 for manually rotating thesame thru :the instrumentality of a crank24 upon one end oftheshaftl8 Y In Figure 3 the pinion23 isshown in mesh with the cylinder'gear 2, and the shaft 16 is now lockedfrom rotation thru the provision of a fiat portion 25 thereon which engages the shaft 18. Whenthe shaft 18. is pulled outwardly as shown in 'dottedlines in Figure 3,

the pinion will move out of engagement with the cyhnder gear 2, and a groove. or con:

cave notch 26 will'move under theshaft 16 and, unlock the same so that it may berotated. The shaft .18'is adapted to be retarded by a friction pin 27 havinga threaded end engaged by an adjusting nut 28 which abuts the end of the bearing. The friction pin 27 has will be locked in its inoperative position against longitudinal movement so that the cylinder cannot be manually rotated while the machine is in operation. Now if it is desired to stop the machine,-the operator will rotate the crank 19 and actuate shaft.16;-and 10 for pulling down the slide plate 6 for throwing out the reversing mechanism and bringing the same to neutral. When this has been done, the flatportion 25 on shaft 16 will haverotated directly over'the concave notch or groove'26 unlocking the shaft'1'8 for shifting movements.

Shaft 18 may nowbe shifted inwardly for engaging the pinion '23 with the cylinder gear 2." This movement will shift theconcave groove 26'beyond the shaft 16 with the result that theflat portion 25 of said shaft 16 will contact the straight'top of'the shaftlS and become llocked against rotation.

If the cylinder stopped rotating withthe door in an improper place for ready access thereto, the crank 24 maybe rotated for rotating the cylinderto bring the door to a proper position. Before'the machine can be started again, the shaft'18 must be shifted to its inoperative position shown indotted lines in Figure 3, when the shaft16 willbe unlocked and may be operatedfor elevating the slide plate 6 and throwing the reversing mechanism in action. WVhen this has'been done, the shaft 18 will again become locked by' the concave notch 26 for locking the man ual drive against operation.

From the foregoing, it will be apparent that a very simple interlocking mechanism has been provided between the reversing mechanism and manual drive whereby only one can be operatedat a time, and when one is unlocked for operation the other is locked.

I' am aware that many-changes may be made andnumerous details of construction may be varied through a wide range without 7 departing from the principles of this invention and I, therefore, do not purpose limshaft having a notch'for receiving said. rod,

when said shaft is shifted to disengage said pinion and gear forthepurposeset. forth.

2. In a machine of the class described having a reversing mechanism and a rotatable cylinder, power means for rotating said cylinder including a gear, controlling mechanism forsaid reversing mechanism including a rod, a manual drive for said gear com prising a shiftable shaft and pinion thereon, said rod extending across said shaft, said shaft and rod having-recessed parts adapted for comlng into operatlve relation through a shifting movement of said shaft for the :purpose set forth.

cominginto cooperative relation at predetermined times through the shifting of said shaft.

4. 'In a'machine of the class described, a gear, power means for driving said gear, a

manual drive for said gear including a shift- 1 able shaft, a pinion thereon for driving said gear, control mechanism for said machineineluding a manually operablerod extending across said shaft, said rod having a flat portion for engaging said shaft when said pin- Y.

ion and gear are in meshing relationand said shaft having a notch for receiving said rod when said pinion and gear are in non-meshing relation.

In testimony whereof I have hereunto subscribed my name'at Chicago, Cook County,

Illinois.

ALBERT C. KALK. 

